Tubular lantern



(No Model) L. P; BETTS. TUBULAR LANTERN.

Paizented Ma 30, 1893.

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" NIT-ED STATES YATENT OFFICE.

LEVVIS' F. BETTS, OF NEW YORK, Y., ASSIGNOR TO THE R. E. DIETZ COM-PANY, OF SAME PLACE, AND THE STEAM GAUGE AND LANTERN COMPANY, OFSYRACUSE, NEW YORK.

TUBULAR LANTERN.

SPECIFICATION forming part of Letters Patent No. 498,420, dated May 30,1893.

Application filed August 10, 1891. Serial No. 402,212. (No model.)

To all whom it may concern: where the upper horizontal branches of theBe it known that I, LEWIS F. Burns, a cititubes join the dependingcentral tube. In zen of theUnitedStates,residingatNewYoi-k, order toavoid this I strengthen the upper in the county and State of New York,have part by a strengthening piece D which coninvented a new and usefulImprovement in nects the central tube with the top branches 55 TubularLanterns, of which the following is and side portions of the air tubes.As reprea specification. sented in Figs. 1 and 2-the strengthening pieceOne part of this invention relates to the D consists of a wire or rodwhich is arranged tubular lantern frame and has the object to againsttheunder side of the top branches of [0 increase thestrength andrigidity of the upthe air tubes and provided with downwardly 60 perportion thereof; another part of my inprojecting or depending endportions d which vention relates to the catch whereby the loose arearranged against the inner sides of the burner cone is fastened upon theair chamber upright portions of the air tubes, The wire and has theobject to increase the elasticity or rod D is provided with a centralbend or of the catch and to render its manipulation bow e which restsagainst one side of the cen- 65 more convenient. tral depending tube.This wire or rod is sol- In the accompanying drawings: Figurel is deredto the upper portion of the tubular an oblique side elevation of atubular lantern frame and forms a firm connection between provided withmy improvements. Fig. 2 is a the upper horizontal branches and theconfragmentary horizontal section through the tral tube and between theupright side'por- 7o upper part of the lantern in line a:0c Fig. 1 tionsand the horizontal top branches.

looking upward, on an enlarged scale. Fig. In the constructionrepresented in Figs. 3 3 is an oblique elevation of the upper part ofand 4 the wire or rod D is constructed witha tubular lantern showing amodified conout the central bend and extends through the struction ofthe strengthening device. Fig. central depending tube instead of aroundit. 75 4 is a horizontal section in line y-y Fig. 3. In the constructionrepresented in Fig. 5 Fig. 5 is a side elevation of the upper part of thstrengthening device is formed by a flat the lantern showing anothermodification of bar which is secured against one side of the thestrengthening device. Fig. Gisasectional lantern frame and extends fromthe top part elevation of the lower part of the lantern at of oneupright side portion along the side of 80 right angles to Fig. 1. Fig. 7is a horizontal the adjacent horizontal branch, then around sectionthrough the lower part of the lantern one side of the central tube, andalong the in line zz Fig. 1. Fig. 8 is a perspective side of the otherhorizontal branch to the top View of the catch by which the burnerconepart of the other upright side portion of the 5 is locked down'upon theair chamber. tube. 5

Like letters of reference refer to like parts Erepresents the burnercone which is loosely in the several figures. fitted with its skirt uponthe upper edge of A represents the oil pot, a the air chamber the airchamber a. F represents the pivoted mounted thereon, b the lowerhorizontal Wire catch wherebythe cone is locked down 40 branches of theair tubes secured to the top of upon the air chamber. This catch is com-0 the oil pot and opening into the air chamber, posed of two verticallegs f f arranged on dia- B the upright portions of the air tubes, 0 themetrically opposite sides of the cone, a semihorizontal top branchesthereof and C the circular bow g connecting the upper ends of centraldepending tube arranged between the the legs and adapted to bear uponthe shoul- 5 top branches and secured thereto. All of der of the cone,and athumb-piece h formed 5 these parts may be of any ordinary or suitonthe bow, as described and shown in Letable construction. ters Patent No.397,625, granted to me Feb- The upper part of the lantern is inferior inruary 12, 1889. In the construction represtrength and rigidity to thelower part and is sented in this patent the legs of the catch areparticularly liable to become bent or broken, pivoted to the upper sidesof the lower hori- IOO zontal branches of the side tubes. This rendersthe legs so short that the catch is not sufficiently elastic to lockeasily over the shoulder of the cone. In order to overcome thisdifiiculty I extend the legs down to the lower portion of the airchamber and provide them with inwardly projecting pivots i which aresprung into openings formed in the air chamber. This constructionincreases the length of the legs and provides the requisite elasticityin the catch, thereby enabling the catch to be conveniently manipulated.

I claim as my invention-'- 1. The combination with the upright side.portions of the air tubes, their upper branches and the centraldepending tube, all rigidly secured together, of a strengthening barrigidly secured to the under sides of the branches and to thecentraltube and provided with depending end pieces which are secured to theside portions of the tubes, substantially as set forth.

2. Thecombinationwiththe uppcrbranchcs of the air tubes and the centraldepending tube rigidly secured together, of a strengthening bar rigidlysecured to the side portions and provided with a bend which extendsaround one side of the central tube and is rigidly secured thereto,substantially as set forth.

3. The combination with the air chamber and the burner cone seatedthereon, of a catch provided with a bow bearing upon the cone and withlegs extending downwardly from the bow on opposite sides of the airchamber and provided at their lower ends with inwardly projecting pivotswhich turn in openings formed in the side walls of the air chamber,substantially as set forth.

Witness my hand this 16th day of July, 1891.

LEWIS F. BETTS.

Witnesses:

I. J. ALLEN, FRED VAN DUY.

